1 /*
  2  * Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.  Oracle designates this
  8  * particular file as subject to the "Classpath" exception as provided
  9  * by Oracle in the LICENSE file that accompanied this code.
 10  *
 11  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  * version 2 for more details (a copy is included in the LICENSE file that
 15  * accompanied this code).
 16  *
 17  * You should have received a copy of the GNU General Public License version
 18  * 2 along with this work; if not, write to the Free Software Foundation,
 19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  *
 21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 22  * or visit www.oracle.com if you need additional information or have any
 23  * questions.
 24  */
 25 package jdk.incubator.vector;
 26 
 27 import java.nio.ByteBuffer;
 28 import java.util.Arrays;
 29 import java.util.Objects;
 30 import java.util.function.IntUnaryOperator;
 31 
 32 import jdk.internal.vm.annotation.ForceInline;
 33 import jdk.internal.vm.vector.VectorSupport;
 34 
 35 import static jdk.internal.vm.vector.VectorSupport.*;
 36 
 37 import static jdk.incubator.vector.VectorOperators.*;
 38 
 39 // -- This file was mechanically generated: Do not edit! -- //
 40 
 41 @SuppressWarnings("cast")  // warning: redundant cast
 42 final class Long128Vector extends LongVector {
 43     static final LongSpecies VSPECIES =
 44         (LongSpecies) LongVector.SPECIES_128;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Long128Vector> VCLASS = Long128Vector.class;
 50 
 51     static final int VSIZE = VSPECIES.vectorBitSize();
 52 
 53     static final int VLENGTH = VSPECIES.laneCount(); // used by the JVM
 54 
 55     static final Class<Long> ETYPE = long.class; // used by the JVM
 56 
 57     Long128Vector(long[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Long128Vector::new,
 62     // stored into species.vectorFactory.
 63     Long128Vector(Object v) {
 64         this((long[]) v);
 65     }
 66 
 67     static final Long128Vector ZERO = new Long128Vector(new long[VLENGTH]);
 68     static final Long128Vector IOTA = new Long128Vector(VSPECIES.iotaArray());
 69 
 70     static {
 71         // Warm up a few species caches.
 72         // If we do this too much we will
 73         // get NPEs from bootstrap circularity.
 74         VSPECIES.dummyVector();
 75         VSPECIES.withLanes(LaneType.BYTE);
 76     }
 77 
 78     // Specialized extractors
 79 
 80     @ForceInline
 81     final @Override
 82     public LongSpecies vspecies() {
 83         // ISSUE:  This should probably be a @Stable
 84         // field inside AbstractVector, rather than
 85         // a megamorphic method.
 86         return VSPECIES;
 87     }
 88 
 89     @ForceInline
 90     @Override
 91     public final Class<Long> elementType() { return long.class; }
 92 
 93     @ForceInline
 94     @Override
 95     public final int elementSize() { return Long.SIZE; }
 96 
 97     @ForceInline
 98     @Override
 99     public final VectorShape shape() { return VSHAPE; }
100 
101     @ForceInline
102     @Override
103     public final int length() { return VLENGTH; }
104 
105     @ForceInline
106     @Override
107     public final int bitSize() { return VSIZE; }
108 
109     @ForceInline
110     @Override
111     public final int byteSize() { return VSIZE / Byte.SIZE; }
112 
113     /*package-private*/
114     @ForceInline
115     final @Override
116     long[] vec() {
117         return (long[])getPayload();
118     }
119 
120     // Virtualized constructors
121 
122     @Override
123     @ForceInline
124     public final Long128Vector broadcast(long e) {
125         return (Long128Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128 
129     @Override
130     @ForceInline
131     Long128Mask maskFromArray(boolean[] bits) {
132         return new Long128Mask(bits);
133     }
134 
135     @Override
136     @ForceInline
137     Long128Shuffle iotaShuffle() { return Long128Shuffle.IOTA; }
138 
139     @ForceInline
140     Long128Shuffle iotaShuffle(int start, int step, boolean wrap) {
141       if (wrap) {
142         return (Long128Shuffle)VectorSupport.shuffleIota(ETYPE, Long128Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
143                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
144       } else {
145         return (Long128Shuffle)VectorSupport.shuffleIota(ETYPE, Long128Shuffle.class, VSPECIES, VLENGTH, start, step, 0,
146                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (i*lstep + lstart)));
147       }
148     }
149 
150     @Override
151     @ForceInline
152     Long128Shuffle shuffleFromBytes(byte[] reorder) { return new Long128Shuffle(reorder); }
153 
154     @Override
155     @ForceInline
156     Long128Shuffle shuffleFromArray(int[] indexes, int i) { return new Long128Shuffle(indexes, i); }
157 
158     @Override
159     @ForceInline
160     Long128Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Long128Shuffle(fn); }
161 
162     // Make a vector of the same species but the given elements:
163     @ForceInline
164     final @Override
165     Long128Vector vectorFactory(long[] vec) {
166         return new Long128Vector(vec);
167     }
168 
169     @ForceInline
170     final @Override
171     Byte128Vector asByteVectorRaw() {
172         return (Byte128Vector) super.asByteVectorRawTemplate();  // specialize
173     }
174 
175     @ForceInline
176     final @Override
177     AbstractVector<?> asVectorRaw(LaneType laneType) {
178         return super.asVectorRawTemplate(laneType);  // specialize
179     }
180 
181     // Unary operator
182 
183     @ForceInline
184     final @Override
185     Long128Vector uOp(FUnOp f) {
186         return (Long128Vector) super.uOpTemplate(f);  // specialize
187     }
188 
189     @ForceInline
190     final @Override
191     Long128Vector uOp(VectorMask<Long> m, FUnOp f) {
192         return (Long128Vector)
193             super.uOpTemplate((Long128Mask)m, f);  // specialize
194     }
195 
196     // Binary operator
197 
198     @ForceInline
199     final @Override
200     Long128Vector bOp(Vector<Long> v, FBinOp f) {
201         return (Long128Vector) super.bOpTemplate((Long128Vector)v, f);  // specialize
202     }
203 
204     @ForceInline
205     final @Override
206     Long128Vector bOp(Vector<Long> v,
207                      VectorMask<Long> m, FBinOp f) {
208         return (Long128Vector)
209             super.bOpTemplate((Long128Vector)v, (Long128Mask)m,
210                               f);  // specialize
211     }
212 
213     // Ternary operator
214 
215     @ForceInline
216     final @Override
217     Long128Vector tOp(Vector<Long> v1, Vector<Long> v2, FTriOp f) {
218         return (Long128Vector)
219             super.tOpTemplate((Long128Vector)v1, (Long128Vector)v2,
220                               f);  // specialize
221     }
222 
223     @ForceInline
224     final @Override
225     Long128Vector tOp(Vector<Long> v1, Vector<Long> v2,
226                      VectorMask<Long> m, FTriOp f) {
227         return (Long128Vector)
228             super.tOpTemplate((Long128Vector)v1, (Long128Vector)v2,
229                               (Long128Mask)m, f);  // specialize
230     }
231 
232     @ForceInline
233     final @Override
234     long rOp(long v, FBinOp f) {
235         return super.rOpTemplate(v, f);  // specialize
236     }
237 
238     @Override
239     @ForceInline
240     public final <F>
241     Vector<F> convertShape(VectorOperators.Conversion<Long,F> conv,
242                            VectorSpecies<F> rsp, int part) {
243         return super.convertShapeTemplate(conv, rsp, part);  // specialize
244     }
245 
246     @Override
247     @ForceInline
248     public final <F>
249     Vector<F> reinterpretShape(VectorSpecies<F> toSpecies, int part) {
250         return super.reinterpretShapeTemplate(toSpecies, part);  // specialize
251     }
252 
253     // Specialized algebraic operations:
254 
255     // The following definition forces a specialized version of this
256     // crucial method into the v-table of this class.  A call to add()
257     // will inline to a call to lanewise(ADD,), at which point the JIT
258     // intrinsic will have the opcode of ADD, plus all the metadata
259     // for this particular class, enabling it to generate precise
260     // code.
261     //
262     // There is probably no benefit to the JIT to specialize the
263     // masked or broadcast versions of the lanewise method.
264 
265     @Override
266     @ForceInline
267     public Long128Vector lanewise(Unary op) {
268         return (Long128Vector) super.lanewiseTemplate(op);  // specialize
269     }
270 
271     @Override
272     @ForceInline
273     public Long128Vector lanewise(Binary op, Vector<Long> v) {
274         return (Long128Vector) super.lanewiseTemplate(op, v);  // specialize
275     }
276 
277     /*package-private*/
278     @Override
279     @ForceInline Long128Vector
280     lanewiseShift(VectorOperators.Binary op, int e) {
281         return (Long128Vector) super.lanewiseShiftTemplate(op, e);  // specialize
282     }
283 
284     /*package-private*/
285     @Override
286     @ForceInline
287     public final
288     Long128Vector
289     lanewise(VectorOperators.Ternary op, Vector<Long> v1, Vector<Long> v2) {
290         return (Long128Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
291     }
292 
293     @Override
294     @ForceInline
295     public final
296     Long128Vector addIndex(int scale) {
297         return (Long128Vector) super.addIndexTemplate(scale);  // specialize
298     }
299 
300     // Type specific horizontal reductions
301 
302     @Override
303     @ForceInline
304     public final long reduceLanes(VectorOperators.Associative op) {
305         return super.reduceLanesTemplate(op);  // specialized
306     }
307 
308     @Override
309     @ForceInline
310     public final long reduceLanes(VectorOperators.Associative op,
311                                     VectorMask<Long> m) {
312         return super.reduceLanesTemplate(op, m);  // specialized
313     }
314 
315     @Override
316     @ForceInline
317     public final long reduceLanesToLong(VectorOperators.Associative op) {
318         return (long) super.reduceLanesTemplate(op);  // specialized
319     }
320 
321     @Override
322     @ForceInline
323     public final long reduceLanesToLong(VectorOperators.Associative op,
324                                         VectorMask<Long> m) {
325         return (long) super.reduceLanesTemplate(op, m);  // specialized
326     }
327 
328     @ForceInline
329     public VectorShuffle<Long> toShuffle() {
330         return super.toShuffleTemplate(Long128Shuffle.class); // specialize
331     }
332 
333     // Specialized unary testing
334 
335     @Override
336     @ForceInline
337     public final Long128Mask test(Test op) {
338         return super.testTemplate(Long128Mask.class, op);  // specialize
339     }
340 
341     // Specialized comparisons
342 
343     @Override
344     @ForceInline
345     public final Long128Mask compare(Comparison op, Vector<Long> v) {
346         return super.compareTemplate(Long128Mask.class, op, v);  // specialize
347     }
348 
349     @Override
350     @ForceInline
351     public final Long128Mask compare(Comparison op, long s) {
352         return super.compareTemplate(Long128Mask.class, op, s);  // specialize
353     }
354 
355 
356     @Override
357     @ForceInline
358     public Long128Vector blend(Vector<Long> v, VectorMask<Long> m) {
359         return (Long128Vector)
360             super.blendTemplate(Long128Mask.class,
361                                 (Long128Vector) v,
362                                 (Long128Mask) m);  // specialize
363     }
364 
365     @Override
366     @ForceInline
367     public Long128Vector slice(int origin, Vector<Long> v) {
368         return (Long128Vector) super.sliceTemplate(origin, v);  // specialize
369     }
370 
371     @Override
372     @ForceInline
373     public Long128Vector slice(int origin) {
374         return (Long128Vector) super.sliceTemplate(origin);  // specialize
375     }
376 
377     @Override
378     @ForceInline
379     public Long128Vector unslice(int origin, Vector<Long> w, int part) {
380         return (Long128Vector) super.unsliceTemplate(origin, w, part);  // specialize
381     }
382 
383     @Override
384     @ForceInline
385     public Long128Vector unslice(int origin, Vector<Long> w, int part, VectorMask<Long> m) {
386         return (Long128Vector)
387             super.unsliceTemplate(Long128Mask.class,
388                                   origin, w, part,
389                                   (Long128Mask) m);  // specialize
390     }
391 
392     @Override
393     @ForceInline
394     public Long128Vector unslice(int origin) {
395         return (Long128Vector) super.unsliceTemplate(origin);  // specialize
396     }
397 
398     @Override
399     @ForceInline
400     public Long128Vector rearrange(VectorShuffle<Long> s) {
401         return (Long128Vector)
402             super.rearrangeTemplate(Long128Shuffle.class,
403                                     (Long128Shuffle) s);  // specialize
404     }
405 
406     @Override
407     @ForceInline
408     public Long128Vector rearrange(VectorShuffle<Long> shuffle,
409                                   VectorMask<Long> m) {
410         return (Long128Vector)
411             super.rearrangeTemplate(Long128Shuffle.class,
412                                     (Long128Shuffle) shuffle,
413                                     (Long128Mask) m);  // specialize
414     }
415 
416     @Override
417     @ForceInline
418     public Long128Vector rearrange(VectorShuffle<Long> s,
419                                   Vector<Long> v) {
420         return (Long128Vector)
421             super.rearrangeTemplate(Long128Shuffle.class,
422                                     (Long128Shuffle) s,
423                                     (Long128Vector) v);  // specialize
424     }
425 
426     @Override
427     @ForceInline
428     public Long128Vector selectFrom(Vector<Long> v) {
429         return (Long128Vector)
430             super.selectFromTemplate((Long128Vector) v);  // specialize
431     }
432 
433     @Override
434     @ForceInline
435     public Long128Vector selectFrom(Vector<Long> v,
436                                    VectorMask<Long> m) {
437         return (Long128Vector)
438             super.selectFromTemplate((Long128Vector) v,
439                                      (Long128Mask) m);  // specialize
440     }
441 
442 
443     @ForceInline
444     @Override
445     public long lane(int i) {
446         switch(i) {
447             case 0: return laneHelper(0);
448             case 1: return laneHelper(1);
449             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
450         }
451     }
452 
453     public long laneHelper(int i) {
454         return (long) VectorSupport.extract(
455                                 VCLASS, ETYPE, VLENGTH,
456                                 this, i,
457                                 (vec, ix) -> {
458                                     long[] vecarr = vec.vec();
459                                     return (long)vecarr[ix];
460                                 });
461     }
462 
463     @ForceInline
464     @Override
465     public Long128Vector withLane(int i, long e) {
466         switch (i) {
467             case 0: return withLaneHelper(0, e);
468             case 1: return withLaneHelper(1, e);
469             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
470         }
471     }
472 
473     public Long128Vector withLaneHelper(int i, long e) {
474         return VectorSupport.insert(
475                                 VCLASS, ETYPE, VLENGTH,
476                                 this, i, (long)e,
477                                 (v, ix, bits) -> {
478                                     long[] res = v.vec().clone();
479                                     res[ix] = (long)bits;
480                                     return v.vectorFactory(res);
481                                 });
482     }
483 
484     // Mask
485 
486     static final class Long128Mask extends AbstractMask<Long> {
487         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
488         static final Class<Long> ETYPE = long.class; // used by the JVM
489 
490         Long128Mask(boolean[] bits) {
491             this(bits, 0);
492         }
493 
494         Long128Mask(boolean[] bits, int offset) {
495             super(prepare(bits, offset));
496         }
497 
498         Long128Mask(boolean val) {
499             super(prepare(val));
500         }
501 
502         private static boolean[] prepare(boolean[] bits, int offset) {
503             boolean[] newBits = new boolean[VSPECIES.laneCount()];
504             for (int i = 0; i < newBits.length; i++) {
505                 newBits[i] = bits[offset + i];
506             }
507             return newBits;
508         }
509 
510         private static boolean[] prepare(boolean val) {
511             boolean[] bits = new boolean[VSPECIES.laneCount()];
512             Arrays.fill(bits, val);
513             return bits;
514         }
515 
516         @ForceInline
517         final @Override
518         public LongSpecies vspecies() {
519             // ISSUE:  This should probably be a @Stable
520             // field inside AbstractMask, rather than
521             // a megamorphic method.
522             return VSPECIES;
523         }
524 
525         @ForceInline
526         boolean[] getBits() {
527             return (boolean[])getPayload();
528         }
529 
530         @Override
531         Long128Mask uOp(MUnOp f) {
532             boolean[] res = new boolean[vspecies().laneCount()];
533             boolean[] bits = getBits();
534             for (int i = 0; i < res.length; i++) {
535                 res[i] = f.apply(i, bits[i]);
536             }
537             return new Long128Mask(res);
538         }
539 
540         @Override
541         Long128Mask bOp(VectorMask<Long> m, MBinOp f) {
542             boolean[] res = new boolean[vspecies().laneCount()];
543             boolean[] bits = getBits();
544             boolean[] mbits = ((Long128Mask)m).getBits();
545             for (int i = 0; i < res.length; i++) {
546                 res[i] = f.apply(i, bits[i], mbits[i]);
547             }
548             return new Long128Mask(res);
549         }
550 
551         @ForceInline
552         @Override
553         public final
554         Long128Vector toVector() {
555             return (Long128Vector) super.toVectorTemplate();  // specialize
556         }
557 
558         /**
559          * Helper function for lane-wise mask conversions.
560          * This function kicks in after intrinsic failure.
561          */
562         @ForceInline
563         private final <E>
564         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
565             if (length() != dsp.laneCount())
566                 throw new IllegalArgumentException("VectorMask length and species length differ");
567             boolean[] maskArray = toArray();
568             return  dsp.maskFactory(maskArray).check(dsp);
569         }
570 
571         @Override
572         @ForceInline
573         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
574             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
575             if (length() != species.laneCount())
576                 throw new IllegalArgumentException("VectorMask length and species length differ");
577             if (VSIZE == species.vectorBitSize()) {
578                 Class<?> dtype = species.elementType();
579                 Class<?> dmtype = species.maskType();
580                 return VectorSupport.convert(VectorSupport.VECTOR_OP_REINTERPRET,
581                     this.getClass(), ETYPE, VLENGTH,
582                     dmtype, dtype, VLENGTH,
583                     this, species,
584                     Long128Mask::defaultMaskCast);
585             }
586             return this.defaultMaskCast(species);
587         }
588 
589         @Override
590         @ForceInline
591         public Long128Mask eq(VectorMask<Long> mask) {
592             Objects.requireNonNull(mask);
593             Long128Mask m = (Long128Mask)mask;
594             return xor(m.not());
595         }
596 
597         // Unary operations
598 
599         @Override
600         @ForceInline
601         public Long128Mask not() {
602             return xor(maskAll(true));
603         }
604 
605         // Binary operations
606 
607         @Override
608         @ForceInline
609         public Long128Mask and(VectorMask<Long> mask) {
610             Objects.requireNonNull(mask);
611             Long128Mask m = (Long128Mask)mask;
612             return VectorSupport.binaryOp(VECTOR_OP_AND, Long128Mask.class, long.class, VLENGTH,
613                                              this, m,
614                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a & b));
615         }
616 
617         @Override
618         @ForceInline
619         public Long128Mask or(VectorMask<Long> mask) {
620             Objects.requireNonNull(mask);
621             Long128Mask m = (Long128Mask)mask;
622             return VectorSupport.binaryOp(VECTOR_OP_OR, Long128Mask.class, long.class, VLENGTH,
623                                              this, m,
624                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a | b));
625         }
626 
627         @ForceInline
628         /* package-private */
629         Long128Mask xor(VectorMask<Long> mask) {
630             Objects.requireNonNull(mask);
631             Long128Mask m = (Long128Mask)mask;
632             return VectorSupport.binaryOp(VECTOR_OP_XOR, Long128Mask.class, long.class, VLENGTH,
633                                           this, m,
634                                           (m1, m2) -> m1.bOp(m2, (i, a, b) -> a ^ b));
635         }
636 
637         // Mask Query operations
638 
639         @Override
640         @ForceInline
641         public int trueCount() {
642             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Long128Mask.class, long.class, VLENGTH, this,
643                                                       (m) -> trueCountHelper(((Long128Mask)m).getBits()));
644         }
645 
646         @Override
647         @ForceInline
648         public int firstTrue() {
649             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Long128Mask.class, long.class, VLENGTH, this,
650                                                       (m) -> firstTrueHelper(((Long128Mask)m).getBits()));
651         }
652 
653         @Override
654         @ForceInline
655         public int lastTrue() {
656             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Long128Mask.class, long.class, VLENGTH, this,
657                                                       (m) -> lastTrueHelper(((Long128Mask)m).getBits()));
658         }
659 
660         // Reductions
661 
662         @Override
663         @ForceInline
664         public boolean anyTrue() {
665             return VectorSupport.test(BT_ne, Long128Mask.class, long.class, VLENGTH,
666                                          this, vspecies().maskAll(true),
667                                          (m, __) -> anyTrueHelper(((Long128Mask)m).getBits()));
668         }
669 
670         @Override
671         @ForceInline
672         public boolean allTrue() {
673             return VectorSupport.test(BT_overflow, Long128Mask.class, long.class, VLENGTH,
674                                          this, vspecies().maskAll(true),
675                                          (m, __) -> allTrueHelper(((Long128Mask)m).getBits()));
676         }
677 
678         @ForceInline
679         /*package-private*/
680         static Long128Mask maskAll(boolean bit) {
681             return VectorSupport.broadcastCoerced(Long128Mask.class, long.class, VLENGTH,
682                                                   (bit ? -1 : 0), null,
683                                                   (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
684         }
685         private static final Long128Mask  TRUE_MASK = new Long128Mask(true);
686         private static final Long128Mask FALSE_MASK = new Long128Mask(false);
687 
688     }
689 
690     // Shuffle
691 
692     static final class Long128Shuffle extends AbstractShuffle<Long> {
693         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
694         static final Class<Long> ETYPE = long.class; // used by the JVM
695 
696         Long128Shuffle(byte[] reorder) {
697             super(VLENGTH, reorder);
698         }
699 
700         public Long128Shuffle(int[] reorder) {
701             super(VLENGTH, reorder);
702         }
703 
704         public Long128Shuffle(int[] reorder, int i) {
705             super(VLENGTH, reorder, i);
706         }
707 
708         public Long128Shuffle(IntUnaryOperator fn) {
709             super(VLENGTH, fn);
710         }
711 
712         @Override
713         public LongSpecies vspecies() {
714             return VSPECIES;
715         }
716 
717         static {
718             // There must be enough bits in the shuffle lanes to encode
719             // VLENGTH valid indexes and VLENGTH exceptional ones.
720             assert(VLENGTH < Byte.MAX_VALUE);
721             assert(Byte.MIN_VALUE <= -VLENGTH);
722         }
723         static final Long128Shuffle IOTA = new Long128Shuffle(IDENTITY);
724 
725         @Override
726         @ForceInline
727         public Long128Vector toVector() {
728             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Long128Shuffle.class, this, VLENGTH,
729                                                     (s) -> ((Long128Vector)(((AbstractShuffle<Long>)(s)).toVectorTemplate())));
730         }
731 
732         @Override
733         @ForceInline
734         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
735             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
736             if (length() != species.laneCount())
737                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
738             int[] shuffleArray = toArray();
739             return s.shuffleFromArray(shuffleArray, 0).check(s);
740         }
741 
742         @ForceInline
743         @Override
744         public Long128Shuffle rearrange(VectorShuffle<Long> shuffle) {
745             Long128Shuffle s = (Long128Shuffle) shuffle;
746             byte[] reorder1 = reorder();
747             byte[] reorder2 = s.reorder();
748             byte[] r = new byte[reorder1.length];
749             for (int i = 0; i < reorder1.length; i++) {
750                 int ssi = reorder2[i];
751                 r[i] = reorder1[ssi];  // throws on exceptional index
752             }
753             return new Long128Shuffle(r);
754         }
755     }
756 
757     // ================================================
758 
759     // Specialized low-level memory operations.
760 
761     @ForceInline
762     @Override
763     final
764     LongVector fromArray0(long[] a, int offset) {
765         return super.fromArray0Template(a, offset);  // specialize
766     }
767 
768 
769 
770     @ForceInline
771     @Override
772     final
773     LongVector fromByteArray0(byte[] a, int offset) {
774         return super.fromByteArray0Template(a, offset);  // specialize
775     }
776 
777     @ForceInline
778     @Override
779     final
780     LongVector fromByteBuffer0(ByteBuffer bb, int offset) {
781         return super.fromByteBuffer0Template(bb, offset);  // specialize
782     }
783 
784     @ForceInline
785     @Override
786     final
787     void intoArray0(long[] a, int offset) {
788         super.intoArray0Template(a, offset);  // specialize
789     }
790 
791     @ForceInline
792     @Override
793     final
794     void intoByteArray0(byte[] a, int offset) {
795         super.intoByteArray0Template(a, offset);  // specialize
796     }
797 
798     // End of specialized low-level memory operations.
799 
800     // ================================================
801 
802 }